I set up sip-xmpp gateway using xmpp module(in component mode). messages from sip client to xmpp delivered, but I have a problem. If recipient is not existent, the sip client don't know nothing about it. How can I inform sip client about such condition? The xmpp server(ejabberd) inform it's component about this error(I've checked it using tcpdump), but kamailio seems ignore this error completely.

What can I do in this situation?